3 files changed, 9 insertions, 11 deletions
diff --git a/js/src/tests/test262/built-ins/String/prototype/at/index-non-numeric-argument-tointeger-invalid.js b/js/src/tests/test262/built-ins/String/prototype/at/index-non-numeric-argument-tointeger-invalid.js
index 64a31c0120..80fc06db0c 100644
--- a/js/src/tests/test262/built-ins/String/prototype/at/index-non-numeric-argument-tointeger-invalid.js
+++ b/js/src/tests/test262/built-ins/String/prototype/at/index-non-numeric-argument-tointeger-invalid.js
@@ -17,6 +17,6 @@ let s = "01";
 
 assert.throws(TypeError, () => {
   s.at(Symbol());
-}, '`s.at(Symbol())` throws TypeError');
+});
 
 reportCompare(0, 0);
diff --git a/js/src/tests/test262/built-ins/String/prototype/at/length.js b/js/src/tests/test262/built-ins/String/prototype/at/length.js
index d552c459bd..c27076b9d4 100644
--- a/js/src/tests/test262/built-ins/String/prototype/at/length.js
+++ b/js/src/tests/test262/built-ins/String/prototype/at/length.js
@@ -14,13 +14,11 @@ features: [String.prototype.at]
 ---*/
 assert.sameValue(typeof String.prototype.at, 'function');
 
-assert.sameValue(
-  String.prototype.at.length, 1,
-  'The value of String.prototype.at.length is 1'
-);
-
-verifyNotEnumerable(String.prototype.at, 'length');
-verifyNotWritable(String.prototype.at, 'length');
-verifyConfigurable(String.prototype.at, 'length');
+verifyProperty(String.prototype.at, "length", {
+  value: 1,
+  writable: false,
+  enumerable: false,
+  configurable: true
+});
 
 reportCompare(0, 0);
diff --git a/js/src/tests/test262/built-ins/String/prototype/at/return-abrupt-from-this.js b/js/src/tests/test262/built-ins/String/prototype/at/return-abrupt-from-this.js
index 0dc4011fce..f9222d733e 100644
--- a/js/src/tests/test262/built-ins/String/prototype/at/return-abrupt-from-this.js
+++ b/js/src/tests/test262/built-ins/String/prototype/at/return-abrupt-from-this.js
@@ -15,10 +15,10 @@ assert.sameValue(typeof String.prototype.at, 'function');
 
 assert.throws(TypeError, () => {
   String.prototype.at.call(undefined);
-}, '`String.prototype.at.call(undefined)` throws TypeError');
+});
 
 assert.throws(TypeError, () => {
   String.prototype.at.call(null);
-}, '`String.prototype.at.call(null)` throws TypeError');
+});
 
 reportCompare(0, 0);